CN212327460U

CN212327460U - A reaction crystallizer tank for producing potassium nitrate

Info

Publication number: CN212327460U
Application number: CN202020823927.6U
Authority: CN
Inventors: 黄林海
Original assignee: Sichuan Energy Investment Construction Group Design And Research Institute Co ltd
Current assignee: Sichuan Energy Investment Construction Group Design And Research Institute Co ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2021-01-12
Anticipated expiration: 2030-05-18

Abstract

The utility model relates to a reaction crystallizer tank for producing potassium nitrate, it is including a jar body, and the top and the bottom of jar body are equipped with feed inlet and discharge gate respectively, and the position that jar external wall is close to the top is equipped with the overflow mouth, prevents effectively that jar internal mother liquor from overflowing from jar mouthful too much. The bottom and the top of the tank body are provided with a water inlet pipe and a water outlet pipe, the top wall of the tank body is coaxially rotated and provided with a spiral or serpentine cooling pipe, the two ends of the cooling pipe are respectively rotatably connected with the water inlet pipe and the water outlet pipe, the cooling pipe is kept communicated while rotating, and cooling water is introduced into the cooling pipe. The cooling pipe and the tank body are coaxially provided with a middle rod, and the top of the cooling pipe tank body is provided with a stirring motor for driving the cooling pipe to rotate. The bottom end of the middle rod of the cooling pipe is provided with double spiral blades, so that the discharge hole is cleaned when the cooling pipe rotates. The utility model discloses have the effect that cooling rate is fast, crystallization efficiency is high.

Description

A reaction crystallizer tank for producing potassium nitrate

Technical Field

The utility model relates to a potassium nitrate manufacture equipment field especially relates to a reaction crystallization tank for producing potassium nitrate.

Background

The potassium nitrate is a chlorine-free nitrogen-potassium compound fertilizer, has high solubility, can be quickly absorbed by crops by using the effective components of nitrogen and potassium, has no chemical substance residue, and is used as a fertilizer and is suitable for being applied to vegetables, fruits, flowers and some chlorine-sensitive crops. Can be used as color former, color fixative, antimicrobial agent, antiseptic in food industry, such as for salting meat, and antiseptic in luncheon meat. And is also a raw material for manufacturing black gunpowder, such as mine gunpowder, firing cable, firecracker and the like.

Patent publication No. CN208436427U discloses a crystallization tank for feed pre-crystallization, comprising a crystallization tank body and a stirrer extending into the crystallization tank body; a feeding pipe is vertically and upwards arranged at the top of the crystallization tank body, and a discharging port is arranged at the bottom of the crystallization tank body; the feeding pipe comprises a pipe body and a feeding cooling jacket arranged on the outer wall of the pipe body; the side wall of the upper part of the feeding cooling jacket is provided with a water outlet pipe, and the side wall of the lower part of the feeding cooling jacket is provided with a water inlet pipe.

The above prior art solutions have the following drawbacks: when cooling crystallization is carried out to high temperature supersaturated solution, carry out heat transfer through liquid and cooling layer and make the liquid cooling, because liquid can't fully contact with the cooling layer, lead to liquid cooling rate slow, efficiency is not high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a reaction crystallizer tank for producing potassium nitrate, which has the advantages of high cooling speed and high crystallization efficiency.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a reaction crystallization tank for producing potassium nitrate, which comprises a tank body, the top and the bottom of the jar body are equipped with feed inlet and discharge gate respectively, the bottom of the jar body is provided with inlet tube and outlet pipe with the top coaxial fixation respectively, the one end of inlet tube is from the internal portion of discharge gate intercommunication jar, coaxial rotation is provided with the cooling tube on the roof of the jar body, the top and the outlet pipe coaxial rotation of cooling tube are connected, the bottom and the inlet tube coaxial rotation of cooling tube are connected, jar body top is provided with and is used for driving cooling tube pivoted drive arrangement, the cooling tube is at the internal crooked setting of jar, the internal coaxial intermediate lever that is provided with of jar, intermediate lever and cooling tube both ends fixed connection

Through adopting above-mentioned technical scheme, pour into jar body back into when the mother liquor, the inlet tube entering cooling tube of cooling water from jar body bottom discharge gate department, rotate through drive arrangement drive cooling tube, the cooling tube is rotating in-process and mother liquor fully contact, make jar internal mother liquor cool off fast, thereby make the crystal appear the crystallization, the concentration that the liquid stirred the mother liquor on the same horizontal plane in the jar body is kept evenly to the cooling tube rotation simultaneously, the mother liquor that appears the crystal is carried next process from the discharge gate, the heat is taken away from the outlet pipe outflow to last cooling water, the inlet tube lasts to lead to water, make the cooling tube continuously cool off the mother liquor, the crystallization efficiency of mother liquor has been improved.

The present invention may be further configured in a preferred embodiment as: the driving device is set as a stirring motor, the stirring motor is arranged at the top of the tank body, an output shaft of the stirring motor faces downwards along the vertical direction, a driving gear is coaxially and fixedly arranged on the output shaft of the stirring motor, and a driven gear meshed with the driving gear is coaxially and fixedly arranged on the cooling pipe.

Through adopting above-mentioned technical scheme, the rotatory cooling tube that drives through agitator motor rotates, makes the process of stirring abundant more effective.

The present invention may be further configured in a preferred embodiment as: the cooling pipe is a spiral coil pipe and is spirally arranged along the inner wall of the tank body.

Through adopting above-mentioned technical scheme, can fully contact with liquid when the cooling tube rotates to make the cooling rate of mother liquor faster, improve the crystallization efficiency of mother liquor, the cooling tube is fast with the mother liquor flow between the jar body when rotating, flows to jar body central authorities after the cooling, and spiral helicine cooling tube makes the mother liquor produce the vortex, makes middle mother liquor flow direction around, has effectively improved stirring effect, makes the cooling effect of mother liquor better.

The present invention may be further configured in a preferred embodiment as: the middle rod is provided with a plurality of support rods in a staggered mode, and one ends, far away from the middle rod, of the support rods are fixedly connected with the cooling pipes.

Through adopting above-mentioned technical scheme, branch and intermediate lever and cooling tube connection have promoted the stability of cooling tube, and branch and cooling tube rotate together during the rotation to realize better abundant stirring effect to the mother liquor, make the concentration of mother liquor even, also make the better abundant and cooling tube contact of mother liquor simultaneously, make the cooling rate of mother liquor faster, improve the crystallization efficiency of mother liquor.

The present invention may be further configured in a preferred embodiment as: the cooling pipe is a snake-shaped bent pipe.

Through adopting above-mentioned technical scheme, can fully contact with liquid when the cooling tube rotates to make the cooling rate of mother liquor faster, improve the crystallization efficiency of mother liquor, return bend itself can play better stirring effect to the cooling water simultaneously, thereby realizes better abundant stirring effect to the mother liquor, makes the concentration of mother liquor even.

The present invention may be further configured in a preferred embodiment as: and the cooling pipe is fixedly provided with a scraping strip which is in contact with the inner side wall of the tank body.

Through adopting above-mentioned technical scheme, the cooling tube drives the lacing wire when rotating and scrapes the crystal of adhesion on the inner wall, keeps the cleanness of jar internal wall.

The present invention may be further configured in a preferred embodiment as: the spiral blades are fixedly arranged on the intermediate rod, a plurality of blades are uniformly arranged at intervals along the circumferential direction of the discharge port, and the edge of the blade, far away from the intermediate rod, is in contact with the inner wall of the discharge port.

Through adopting above-mentioned technical scheme, the cooling tube drives the blade rotation when rotating, and the thick liquid after will appearing the crystallization is carried out jar body, and blade and inner wall contact have constantly cleared up the inner wall of discharge gate when rotating simultaneously, have prevented effectively that the discharge gate from taking place to block up.

The present invention may be further configured in a preferred embodiment as: the tank body is provided with an overflow port, and the overflow port is positioned on the outer wall of the tank body close to the top.

Through adopting above-mentioned technical scheme, when jar internal mother liquor was too much, the mother liquor flowed from the overflow mouth, prevented effectively that the mother liquor from spilling over from jar body top, produced the influence to agitator motor.

To sum up, the utility model discloses a following beneficial technological effect:

1. the cooling pipe is driven by the stirring motor to continuously stir the mother liquor, so that the concentration of the mother liquor is kept uniform, meanwhile, the cooling pipe is fully contacted with the mother liquor, and cooling water in the cooling pipe flows to continuously take away heat, so that the cooling speed of the mother liquor is effectively improved, and the crystallization efficiency of the mother liquor is improved;

2. the cooling pipe is provided with a scraper which is contacted with the inner wall of the tank body, and the scraper continuously cleans the inner wall of the tank body while the cooling pipe rotates, so that the separated well body can not be adhered to the inner wall of the tank body;

3. the middle spiral blade which is contacted with the inner wall of the discharge hole is arranged at the discharge hole, so that the mother liquor after crystallization is separated out can be discharged out of the tank body continuously, and the blockage of the discharge hole is effectively avoided.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic partial cross-sectional view of a tank according to a first embodiment of the present invention.

Fig. 3 is a schematic partial cross-sectional view of a tank according to a second embodiment of the present invention.

In the figure, 1, a tank body; 2. a feed inlet; 3. a discharge port; 4. a water inlet pipe; 5. a water outlet pipe; 6. a drive device; 7. an overflow port; 8. a cooling tube; 9. an intermediate lever; 10. scraping the strips; 11. a blade; 12. a strut; 61. a stirring motor; 62. a driving gear; 63. a driven gear.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, fig. 2, for the utility model discloses a reaction crystallization tank for producing potassium nitrate, the top and the bottom of the jar body 1 are equipped with feed inlet 2 and discharge gate 3, the bottom of the jar body 1 is provided with inlet tube 4 and outlet pipe 5 with the top coaxial fixation respectively, the one end of inlet tube 4 is followed the discharge gate 3 and is linked together jar internal portion, coaxial rotation is provided with cooling tube 8 on the roof of the jar body 1, the top and the 5 coaxial rotations of outlet pipe of cooling tube 8 are connected, the bottom and the 4 coaxial rotations of inlet tube of cooling tube 8 are connected, cooling tube 8 is the setting of buckling in the jar body 1. The coaxial intermediate lever 9 that is provided with in jar body 1,

intermediate lever

9 and 8 both ends fixed connection of cooling tube, the mother liquor after the cooling flows out from below discharge gate 3, and cooling water flows into cooling tube 8 from the below and enables the part that the mother liquor flows out and is cooled off at first, has effectively improved the crystallization efficiency of mother liquor.

Referring to fig. 2, a driving device 6 for driving the cooling pipe 8 to rotate is arranged at the top of the tank body 1, the driving device 6 is a stirring motor 61, an output shaft of the stirring motor 61 is directed downward, a driving gear 62 is coaxially and fixedly arranged on the output shaft of the stirring motor 61, and a driven gear 63 engaged with the driving gear 62 is coaxially and fixedly arranged on the cooling pipe 8. Through gear drive 8 rotations of cooling tube when agitator motor 61 rotates, stir mother liquor, make cooling tube 8 and mother liquor fully contact simultaneously to make the mother liquor cooling faster, effectively improve crystallization efficiency.

The first embodiment is as follows: referring to fig. 2, the cooling tube 8 is a spiral coil pipe which spirals along the inner wall of the tank body 1, the cooling tube 8 is provided with a scraping strip 10 which contacts with the inner side wall of the tank body 1, the intermediate rod 9 is provided with a plurality of support rods 12 in a staggered manner, one end of each support rod 12 far away from the intermediate rod 9 is fixedly connected with the cooling tube 8, the cooling tube 8 can drive the scraping strip 10 to scrape crystals adhered to the inner wall during rotation, and the crystals are driven to the discharge hole 3 by the spiral scraping strip 10 to keep the inner wall of the tank body 1 clean. Branch 12 between intermediate lever 9 and the cooling tube 8 has played the supporting role to cooling tube 8, and is more stable when making cooling tube 8 rotate, stirs mother liquor when rotating simultaneously, makes mother liquor and 8 contacts of cooling tube more abundant, has improved the cooling rate of mother liquor.

Example two: referring to fig. 3, the cooling tube 8 is a serpentine elbow, the bend of the cooling tube 8 is a right angle, the portion of the cooling tube 8 close to the inner wall of the tank body 1 is provided with a scraping strip 10 contacting with the tank body 1, the cooling tube 8 stirs the mother liquor during rotation, so that the concentration of the cooling water is more uniform, and the cooling tube 8 contacts with the mother liquor more fully. When the cooling pipe 8 rotates, the scraping strip 10 is driven by the cooling pipe to scrape the crystals adhered to the inner wall, and the inner wall of the tank body 1 is kept clean.

Referring to fig. 1, the position that is close to the top on the outer wall of the jar body 1 is equipped with overflow mouth 7, effectively prevents to spill over from the top when the mother liquor is too much in the jar body 1, influences agitator motor 61.

Referring to fig. 2 and 3, the middle rod 9 is provided with two spiral blades 11 contacting with the inner wall of the discharge port 3 near one end of the discharge port 3, when the cooling pipe 8 rotates, the mother liquid of the precipitated crystal is continuously discharged from the discharge port 3 out of the tank body 1 by the blades 11, thereby the crystals adhered on the inner wall are hung by the contact of the blades 11 and the inner wall of the discharge port 3, and the discharge port 3 is effectively prevented from being blocked.

The implementation principle of the embodiment is as follows: in the mother liquor of potassium nitrate injected the crystallization tank from the feed inlet at top, the cooling water cooled off the mother liquor in getting into the cooling tube from the inlet tube of bottom, and agitator motor passes through driving gear and driven gear transmission, drives the cooling tube and rotates, makes the cooling tube constantly stir the mother liquor, keeps concentration uniform on the same horizontal plane of mother liquor, makes the cooling tube fully contact with the mother liquor simultaneously, improves cooling rate. The back is appeared along with the mother liquor from the discharge gate outflow and is sent to next process one to the potassium nitrate crystallization, and the cooling water flows out from the outlet pipe and takes away the heat, and the inlet tube lasts leads to water, makes the cooling tube last to cool off the mother liquor, has effectively improved the cooling rate of mother liquor, makes crystallization efficiency higher.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a reaction crystallizer tank for producing potassium nitrate, includes a jar body (1), the top and the bottom of jar body (1) are equipped with feed inlet (2) and discharge gate (3) respectively, its characterized in that: the bottom and the top of the jar body (1) are coaxial fixed inlet tube (4) and outlet pipe (5) respectively, the one end of inlet tube (4) is from discharge gate (3) intercommunication jar body (1) inside, coaxial rotation is provided with cooling tube (8) on the roof of the jar body (1), the top and outlet pipe (5) coaxial rotation of cooling tube (8) are connected, the bottom and inlet tube (4) coaxial rotation of cooling tube (8) are connected, jar body (1) top is provided with and is used for driving cooling tube (8) pivoted drive arrangement (6), cooling tube (8) are the setting of buckling in jar body (1), the coaxial intermediate lever (9) that is provided with in jar body (1), intermediate lever (9) and cooling tube (8) both ends fixed connection.

2. A reactive crystallization tank for the production of potassium nitrate as claimed in claim 1, wherein: the cooling tank is characterized in that the driving device (6) is arranged to be a stirring motor (61), the stirring motor (61) is fixedly arranged at the top of the tank body (1), an output shaft of the stirring motor (61) faces downwards along the vertical direction, a driving gear (62) is coaxially and fixedly arranged on the output shaft of the stirring motor (61), and a driven gear (63) meshed with the driving gear (62) is coaxially and fixedly arranged on the cooling pipe (8).

3. A reactive crystallization tank for the production of potassium nitrate as claimed in claim 1, wherein: the cooling pipe (8) is a spiral coil pipe, and the cooling pipe (8) is spirally arranged along the inner wall of the tank body (1).

4. A reactive crystallization tank for the production of potassium nitrate as claimed in claim 3, wherein: a plurality of support rods (12) are arranged on the intermediate rod (9) in a staggered mode, and one end, far away from the intermediate rod (9), of each support rod (12) is fixedly connected with the cooling pipe (8).

5. A reactive crystallization tank for the production of potassium nitrate as claimed in claim 1, wherein: the cooling pipe (8) is a snake-shaped bent pipe.

6. A reactive crystallization tank for the production of potassium nitrate as claimed in claim 1, wherein: and a scraping strip (10) which is in contact with the inner side wall of the tank body (1) is fixedly arranged on the cooling pipe (8).

7. A reactive crystallization tank for the production of potassium nitrate as claimed in claim 1, wherein: the utility model discloses a material discharging device, including intermediate lever (9), fixed blade (11) that is provided with on intermediate lever (9), blade (11) are provided with a plurality of along discharge gate (3) circumference even interval, the edge that intermediate lever (9) were kept away from in blade (11) contacts with the inner wall of discharge gate (3).

8. A reactive crystallization tank for the production of potassium nitrate as claimed in claim 1, wherein: the tank body (1) is provided with an overflow port (7), and the overflow port (7) is positioned at the position, close to the top, of the outer wall of the tank body (1).